python-app-exceptions¶

Typed exception hierarchy for application/business logic errors.

Installation¶

pip install python-app-exceptions

Public API¶

Exception	Purpose
`BaseApplicationException`	Root for all app errors (`message`, `details`)
`BusinessLogicError`	Business rule violations (`rule`, `details`)
`ValidationError`	Data validation failures (`field`, `value`)
`InvalidInputError`	Invalid input format (`input_name`, `expected_format`)
`RetryExhaustedException`	All retry attempts failed (`operation`, `attempts`)
`RetryableError`	Transient error, can retry (`message`, `retry_after`)

Usage¶

from python_app_exceptions import BusinessLogicError, ValidationError

raise BusinessLogicError(rule="email_unique", details={"email": email})
raise ValidationError(field="age", value=-1, details={"constraint": "positive"})